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98ed369800
Refactor DSB implementation to be compatible with Xe driver. v1: RFC version. v2: Make intel_dsb structure opaque from external usage. [Jani] v3: Rebased on latest. v4: - Add boundary check in dsb_buffer_memset(). [Luca] - Use size_t instead of u32. [Luca] v5: WARN_ON() added for out of boudary case with some optimization. [Luca] v6: Rebased on latest and fix a rebase-miss. Cc: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231110032518.3564279-1-animesh.manna@intel.com
29 lines
849 B
C
29 lines
849 B
C
/* SPDX-License-Identifier: MIT
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*
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* Copyright © 2023 Intel Corporation
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*/
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#ifndef _INTEL_DSB_BUFFER_H
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#define _INTEL_DSB_BUFFER_H
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#include <linux/types.h>
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struct intel_crtc;
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struct i915_vma;
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struct intel_dsb_buffer {
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u32 *cmd_buf;
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struct i915_vma *vma;
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size_t buf_size;
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};
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u32 intel_dsb_buffer_ggtt_offset(struct intel_dsb_buffer *dsb_buf);
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void intel_dsb_buffer_write(struct intel_dsb_buffer *dsb_buf, u32 idx, u32 val);
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u32 intel_dsb_buffer_read(struct intel_dsb_buffer *dsb_buf, u32 idx);
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void intel_dsb_buffer_memset(struct intel_dsb_buffer *dsb_buf, u32 idx, u32 val, size_t size);
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bool intel_dsb_buffer_create(struct intel_crtc *crtc, struct intel_dsb_buffer *dsb_buf,
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size_t size);
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void intel_dsb_buffer_cleanup(struct intel_dsb_buffer *dsb_buf);
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void intel_dsb_buffer_flush_map(struct intel_dsb_buffer *dsb_buf);
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#endif
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